History
The concepts of aerosol probably goes as far back as 1790. The first aerosol spray can patent was granted in Oslo in 1926 to Erik Rotheim, a Norwegian chemical engineer, and a United States patent was granted for the invention in 1931. The patent rights were sold to a United States company for 100,000 Norwegian kroner. The Norwegian Post Office celebrated the invention by issuing a stamp in 1998.
In 1939, American Julian S. Kahn received a patent for a disposable spray can, but the product remained largely undeveloped. It was not until 1941 that the aerosol spray can was first put to good use by Americans Lyle Goodhue and William Sullivan, who are credited as the inventors of the modern spray can. Their design of a refillable spray can dubbed the "bug bomb", was patented in 1943, and is the ancestor of many popular commercial spray products. Pressurized by liquefied gas, which gave it propellant qualities, the small, portable can enabled soldiers to defend against malaria-carrying mosquitoes by spraying inside tents in the Pacific during World War II. In 1948, three companies were granted licenses by the United States government to manufacture aerosols. Two of the three companies, Chase Products Company and Claire Manufacturing, still manufacture aerosols to this day. The "crimp-on valve", used to control the spray was developed in 1949 by Bronx machine shop proprietor Robert H. Abplanalp.
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